Wire-drawing block.



J. H. REF-GE.

WIRE DRAWING BLOCK. APPLICATION FILED JULY 5, 1910.

l atented May 21, 1912.

2 SHEETS-SHEET 1.

Inventor:

mzllessesr Jzzan H. Reece.

COLUMBIA PLANDGRAPH c0.,wASl-IINOTON, D. c.

J. H. REEGE.

WIRE DRAWING BLOCK. APPLICATION Hum 1111.15, 1910.

1,027,357, V .Patented May 21,fl19 l2.

z snnn'rs-snnnic 2.

h l'znesses [/2 yen for:

COLUMBIA PLANOGRAPH co.,wAsmNnTpN, D. C, I

UNITED STATES PATENT OFFICE. I v

JUAN H. REECE, 0F JOLIET, ILLINOIS, ASSIGNOR T0 HUMPI-IREY & SONS, OFOLIET, ILLINOIS, .A. COPARTNERSHIP.

WIRE-DRAWING BLOCK.

Specification of Letters Patent.

Patented May 21, 1912.

To all whom it may concern: 7 Be it known that I, JUAN H. Enron, a c1t1-zen of the United States, residing at J oliet,

in the county of Will and State of Illinois, have invented certain newand useful Improvements in Wire-Drawing Blocks, of which the followingis a specification.

The present invention relates to blocks utilized during the process ofmaking wire for the purpose of drawing a wire rod through a die block,and for'winding the wire after the drawing operation.

The objects of the present invention are to construct a blockwherebyuponthe ini tial operation thereof, the cable carrying thegrippers clamping theend of the wire will advance with a relatively slowmovement and will increase its speed of movement asthe block is rotateda greater distance.

A further object of the invention is to place the cable under a tensionprior to the starting of the block, whereby the grippers upon the end ofthe cable will tightly clamp the end of the wire. 1

Further objects of the invention will appear from a detailed decriptionhereinafter set forth. e

In the drawings, Figure 1 is a plan view of the block, showing the cablein its posi-- tion when the end thereof is attached to the wire andbefore the block has started re-o volving; Fig. 1 a viewshowing thecable prior to its being moved into position to have the grippers engagethe end of the wire; Fig. 2, a plan view showing the block after it hasbeen rotated a distance; Fig- 3, a plan view of the block, showing theparts in position after the block has rotated sufficiently to carry thecable onto theoutside of the drum; and Fig." 4, a cross section of theblock. c

In the art of wire drawing, the rod which is to be drawn through the dieblock is tapered at its end intoan elongated point, so that the body ofthe wire is gradually drawn into contact with the die. This is necessarybecause of the fact that if the funcircumference of the rod weresuddenly brought into contact with the die opening,

the resultant shockor jar would tear the rod at the point where it wasin engagement with the die. Hence, by utilizing a tapered end, the fulldiameter of the rod is not brought into contact with the die upon the Iinitial movement of the rod through the'die,

but this is gradually led up to, so that when thefull circumference ofthe rod is finally drawn between the die blocks, the strain incidentthereto has been gradually imparted to the rod, so that it will notbecome broken when the full strain is placed thereon.

As the grippers, which are carried by the cable actuated by the drum,are secured to the extreme tapered end of the wire, it is obvious thatit would not be practicable to subject them, upon the initial windingofthe drum, to the full strain incident to the passing of the rod throughthe dies. Therefore, it isexpedient in these devices to start the blockwith a relatively slow movement and increase the same as the taper isdrawn through the die. In this manner, the strain is graduallyincreasedbetween the grippers and the wire, so that. a cutting of the wire by thegrippers, ora loosening therefrom by other means, is not resultant uponthe starting of the block.

The block of the present invention comprises a body portion in'the formof a drum 5, havingits exterior of stepped formation,

as is usual and well known in constructions:

of this nature, and the drum is provided in its upper portion with acentrally disposed chamber 6, in which lies a spring 7. One end of thespring is attached to a stud 8 carried by the drum, and the other end isattached to a stud 9 carriedby a plate 10 lying upon the upper face llofthe block. The plate 10 is provided with a collar 10, which surrounds anupwardly extending spindle 12"secured to the body of the drum, wherebyrotative action of the spindle will rotate the drum and verticalmovement of the plate 10 around the spindle 12 is prevented by means ofa cotter pin 13, or other suitablelocking device.

The plate 10 is provided with a member 14 inthe' form of a staple,to'which is attached a cable 15, having upon the free end thereofgrippers 16 of any suitable'and well known character for gripping theend of the wire. The plate 10 is also provided with an outwardlyextending contact 17 and the drum 5 is provided, upon its upper face,with a lug 18, which forms a contact adapted to engage the contact 17 ofthe plate 10. Within a groove 18 in the upper outer edge of the block ispositioned a loose ring 19,

which is cut away to provide an opening :20, through which the cablepasses from the block'to the wire coming from the die, and the shoulders21 form a guide to insure the passing of the cable to the outside of theblock, as will be more fully hereinafter set forth.

The ring 19 is provided with a plurality of recesses, adapted to receiveupwardly extending rods 22, around which the wire is reeled after asufficient amount has been gathered upon the drum to entirely cover thebody portion thereof.

The operation is as follows: In the initial position, when the plate 10is lying to have the protuberance 17 in the position shown in Fig. 1 thecable is grasped by the operator and the plate turned to the positionshown in Fig. 1. This rotating of the plate will serve to wind up thesprmg 7, thus placing the plate 10 and cable 15 carried thereby under atension. hen such tension has been produced, the grippers are secured tothe end of the wire and will be held in place thereon, because of theconstant inward pull of the cable produced by the tension of the spring7. The drum is then rotated, and upon the initial movement of the drum,the cable will move into the position shown in Fig. 2, where .it iswound around the collar 10 thus, although the drum has advanced aconsiderable distance, the cable will have advanced but a shortdistance, because of the fact that it is wound on an arc of relativelyshort radius. That is, it is being carried through a path relativelyclose to the axial center of the drum; hence, the movement of the drumwill impart but a very slight relative movement to the cable, and, ofcourse, will advance the wire through the die blocks slowly. This slightmovement of the cable will continue until the contact 18 crosses thepath in which the chain is lying. hen said contact crosses said path,.it will engage and deflect the cable, carrying it around the axis ofthe drum in an arc of greater radius than the collar 10. Hencethe'movement of the cable after it has been engaged by the contact 18will be greater than when it was being revolved by the action of theplate 10, and the speed of movement of the wire through the die blockincreased.

hen the drum is rotated from the position-shown in Fig. 1 to that shownin Fig. 2, if the end of the ring is brought in contact with the cableit simply slides around on the drum since the pressure is approximatelyin the direction of a tangent to the ring. IVhen, however, the cable isdeflected by the contact 18 the line of pressure produces a secant orradius of the ring and the friction between the drum and ring is therebyincreased to such an extent 1 that the ring is carried around with thedrum and the cable wound on the ring. Due to the greater distance of thering from the center of the drum the speed of movement of the cable isincreased over that given it by the action of the contact 18.

The contact 18 and the collar 10 are so arranged with respect to oneanother that when the cable is engaged respectively by this contact anddeflected fromits course around the collar 10*, it will describe anincreasing arc toward the outer periphery of the block, so that thespeed of movement of the wire through the block will be increased as theblock continues to rotate. Hence, upon the initial rotation of theblock, the chain will be advanced but a relatively short distance andthe speed of movement of the cable is increased until it is moving atthe same speed as the block; and this is the movement desired andnecessary in order to properly advance the wire through the dies withoutbreaking or cutting the end thereof during such operation, orv withoutsubjecting the die and rod to the violent strain incident to the quickforcing of the enlarged portion into the dies.

I claim:

1. In a wire drawing block, the combination of a rotatable drum, aspindle upwardly extending from the drum, a plate having a collarsurrounding said spindle and lying upon the upper surface of said drum,a cable attached to said plate, having grippers on the end thereofadapted to clamp the end of the wire, a member carried by the drum forengaging and rotating said plate, whereby upon the initial movement ofthe drum the cable is wound about the collar, said engaging meansserving to deflect the cable from its path of travel about thecollaredportion of the plate, to carry it to the outside of the drum,whereby the speed of winding of the cable is increased during theinitial period of movement of the plate, tension means for placing aspring tension on the plate to cause the grippers to obtain an initialfirm grip on the wire prior to the rotation of the drum, and means fordeflecting the cable to place the grippers upon the outside of the drum,substantially as described.

2. In a wire drawing block, the combina tion of a rotatable drum, aspindle upwardly extending from the drum, a collared plate surroundingsaid spindle and lying upon the upper surface of said drum, a cableattached to said plate, having grippers on the end thereof adapted toclamp the end of the wire, a protuberance on said plate, a proturbanceon said drum adapted to engage each other, the cable upon the initialmovement of the drum being wound in a curve of small radius about saidcollar, said proturberance deflecting the cable from its path of travelabout said collar to carry it to the outside of the drum, whereby thespeed of winding of the cable is increased during the initial period ofmovement of the drum, substantially as described.

' plate surrounding said spindle, a cable attached to said plate, havinggrippers on the end thereof adapted to clamp the end of the wire, aprotuberance on said plate, a protuberance on said drum adapted toengage each other, whereby said plate is rotated simultaneously withsaid drum, the cable upon the initial movement of the, drum being woundabout said collar, the protuberance on said drum. contacting said cablea when it crosses the line in which said cable is lying to deflect thecable away from its course around the collar and onto the periphcry ofthe drum, whereby the speed of winding of the cable is increased duringthe initial period of movement of the drum, substantially as described.

4. In a wire drawing block, the combination of a rotatable drum, aspindle upwardly extending fromthe center of the drum, a plate having acollar surrounding said spindle and operatively connected to the drum, acable attached to said plate, having grippers on the end thereof adaptedto clamp the end of the wire, the initial rotation of the plate windingthe cable about the collar. 1116111181 01 deflecting the cable from itspath of travel. about the collar, whereby the speed of winding of thecable is increased during the initial period of movement of the plate,and a loosely mounted ring on the drum at its periphery, having aportion thereof cut away to permit the cable to pass out and to providea shoulder adapted to engage the cable and prevent the slipping of thecable over the top of the drum, substantially as described.

5. In a wire drawing block, the combination of a rotatable drum, aspindle upwardly extending from the center of the drum, a plate having acollar surrounding said spindle and operatively connected to the drum, acable attached to said plate having grippers on the end thereof adaptedto clamp the end of the wire, a protuberance on said plate, aprotuberance on saiddrum adapted to engage each other, the cable uponthe initial'inovementof the drum being wound about the collar, said.drum protuberance deflecting the cable from its path of travel about thecollar, whereby the speed of winding of the cable is increased, and aloosely mounted ring on the drum at its periphery having a portionthereof cut away to "permit the cable to pass out and to provide ashoulder adapted to engage the cable and prevent the slipping of thecable over the top of the drum, sub stantially as described.

6. In a wire drawing block, the combination of a rotatable drum, aspindleup-' wardly extending from the center of the drum, a plate havinga collar surrounding said spindle and operatively connected to the drum,a cable attached to said plate,

having grippers on the end thereof adapted to clamp the end of the wire,a protuberance on said plate, a protuberance on said drum adapted toengage each other, the cable upon the initial movement of the drum beingwound about the collar, the protuberance on said drum contacting saidcable to defiect the cable away from its path of travel around thecollar and onto the periphery of the drum, whereby the speed of windingof the cable is increased during the initial period of movement of thedrum, and a loosely mounted ring on the drum at its periphery, having aportion thereof cut away, to permit the cable to pass out, and

to provide .a shoulder adapted to engage the cable and prevent theslipping of the cable over the top of the drum, substantially asdescribed.

7. Ina wire drawing block, the combination of a rotatable drum, aspindle upwardly extending from the center of the drum, a platehaving acollar surrounding said spindle and operatively connected to said drum,acable attached to said plate, having grippers onthe end thereof adaptedto clamp the end of the wire, the initial rotation of the plate windingthe cable around the collar, means for deflecting the cable from itspath of travel about the col-' lar, whereby the speed of winding of thecable is increased during the initial period of movementof the drum,said drum having a centrally located recess therein, a spring withinsaid recess, having one end attached to the plate and the other endattached to said drum, said spring serving to place a tension on saidplate prior to the initial movement of the drum, whereby the grippers onthe cable are held in firm engagement with the end of the wire,substantially as described.

8. In a wire drawing block, the combination 'of a rotatable drum, aspindleupwardly extending from the center of the drum, a plate having acollar surrounding said spindle, and operatively connected to said drum,a cable attached to said plate,

having grippers on the end thereof adapted to clamp the end of the wire,the initial movement of the drum winding the cable about the collar,means for deflecting the cable from its path of travel about the collar,whereby the speed of winding of the cable is increased during theinitial period of movement of the drum, a loosely mounted ring on thedrum at the periphery of said drum, having a portion thereof cutaway topermit the cable to pass out, and to provide a shoulder adapted toengage the cable and prevent the slipping of the cable over the top ofthe drum, said drum having a centrally located recess therein, a springwithin said recess, having one end attached to the plate and the otherend attached to said drum, said spring serving to place a tension onsaid plate prior to the initial movement of the drum, whereby thegrippers on the cable are held in firm engagement with the end of thewire, substantially as described.

9. In a wire drawing block, the combination of a rotatable drum, aspindle upwardly extending from the drum, a collared plate memberloosely mounted on said spindle, and operatively connected to the drum,a cable secured to said member, said cable having grippers on the endthereof adapted to clamp the end of the wire, the initial movement ofthe "drum carrying the cable in a circle of small radius about saidmember, means for deflecting the cable to carry it out from its initialpath of movement and onto the outside of the drum, sub stantially asdescribed.

10. In a wire drawing block, the combination of a rotatable drum, aspindle upwardly extending from the drum, a member loosely mounted onsaid spindle and operatively connected to the drum, a cable secured tosaid member, said cable having grippers on the end thereof adapted toclamp the end of the wire, the initial move ment of the drum carryingthe cable in a circle of small radius about said member, means fordeflecting the cable from its initial movement to carry it onto theoutside of the drum, and means for placing an initiatory spring tensionon said member to enable the grippers on the cable to obtain an initialfirm grip on the wire prior to the rotation of the drum, substantiallyas described.

11. In a wire drawing block, the combination of a rotatable drum, aspindle upwardly extending from the drum, a collared plate looselymounted upon said spindle and operatively connected to said drum, saidplate lying against the upper face of said drum, a cable attached tosaid plate, having grippers on the end thereof adapted to clamp the endof the wire, whereby upon the initial movement of the drum the cable iswound about the collared portion of the plate to carry it to the outsideof the drum, whereby the speed of winding the cable is increased duringthe initial period of movement of the drum, substantially as described.

O. G. JENNER,

LEWIS W. CoNNELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

